CN108150314A - Turbine cylinder and the turbine shroud manifold with the integrated form by-passing valve for special exhaust gas recycling engine - Google Patents
Turbine cylinder and the turbine shroud manifold with the integrated form by-passing valve for special exhaust gas recycling engine Download PDFInfo
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- CN108150314A CN108150314A CN201711220401.8A CN201711220401A CN108150314A CN 108150314 A CN108150314 A CN 108150314A CN 201711220401 A CN201711220401 A CN 201711220401A CN 108150314 A CN108150314 A CN 108150314A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
- F02M26/16—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the exhaust system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
- F02M26/43—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/71—Multi-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Supercharger (AREA)
Abstract
There is provided herein turbocharger manifold and turbocharger and including turbocharger manifold and the exhaust gas of turbocharger recycling (EGR) system.The manifold includes main body, at least one non-dedicated EGR conduit, special EGR conduit and the EGR by-passing valves being in fluid communication with special EGR conduit, wherein special EGR conduit and at least one non-dedicated EGR conduit in EGR by-passing valves downstream converge.Special EGR conduit can be in fluid communication with EGR conduit.EGR by-passing valves optionally allow or prevent the fluid communication between special EGR conduit and EGR conduit.EGR by-passing valves may include two-way valve, have the door that the second position can be moved to from first position.The manifold may include the one-piece construction with turbocharger turbine housing.
Description
Background technology
During the burn cycle of internal combustion engine (ICE), air/fuel mixture is supplied to the cylinder of ICE.Air/combustion
Material mixture is compressed and/or lights and burn to provide output torque.Many oil and gasoline ICE are (all using supercharging device
Such as, the turbocharger of exhaust gas turbine driving), to enter compressed air stream before the inlet manifold of engine in air-flow, to carry
High power and efficiency.Specifically, turbocharger uses centrifugal gas compressor, and can be in addition real under environment atmospheric pressure
Existing situation is compared, which is pressed into more air (that is, oxygen) combustion chamber of ICE.It is pressed into ICE
The additional mass of oxygen-containing air improve the volumetric efficiency of engine, allow its more fuel that burn in given cycle,
Thus it generates more high-power.
Invention content
Aspect accoding to exemplary embodiment provides a kind of turbocharger turbine housing manifold.The manifold may include
Main body, at least one non-dedicated exhaust gas recycling (EGR) pipeline, special EGR conduit and it is in fluid communication with special EGR conduit
EGR by-passing valves.Special EGR conduit can be converged at least one non-dedicated EGR conduit in EGR by-passing valves downstream.Special EGR conduit
It can be in fluid communication with EGR conduit.EGR by-passing valves optionally allow or prevent the stream between special EGR conduit and EGR conduit
Body connects.EGR by-passing valves may include two-way valve, have the door that the second position can be moved to from first position, wherein at door
When first position, special EGR conduit is in fluid communication, and at least one non-dedicated EGR conduit when door is in the second position,
Special EGR conduit is in fluid communication with EGR conduit.The manifold can further comprise waste gate valve, be arranged under EGR by-passing valves
Trip.
Other side accoding to exemplary embodiment, turbocharger may include compressor, be arranged on compression case
In vivo;Turbine is mechanically coupled to compressor and is arranged in turbine shroud.Turbine shroud may include thering is multiple pipelines
Manifold, these pipelines be focused in the manifold and with turbine establish be in fluid communication, and at least one pipeline can be with EGR
The special EGR conduit of by-passing valve.At least one pipe special can be converged at least one remaining pipeline in EGR by-passing valves downstream.
Manifold and turbine shroud can be that integral type constructs.EGR by-passing valves optionally allow or prevent special EGR conduit and turbine it
Between fluid communication.One or more of at least one special EGR conduit can be in fluid communication with EGR conduit.EGR by-passing valves can
Selectively allow for or prevent the fluid communication between one or more special EGR conduits and EGR conduit.EGR by-passing valves can wrap
Two-way valve is included, there is the door that the second position can be moved to from first position, wherein when door is in first position, special EGR
Pipeline is in fluid communication, and at least one non-dedicated EGR conduit when door is in the second position, special EGR conduit and EGR conduit
It is in fluid communication.The turbocharger can further comprise waste gate valve, be arranged on EGR by-passing valves downstream.
Aspect accoding to exemplary embodiment, egr system may include:Internal combustion engine, the internal combustion engine have inlet manifold, should be into
Gas manifold configuration is to deliver the air to multiple cylinders, and one in plurality of cylinder is special EGR cylinders;EGR conduit,
It is in fluid communication with inlet manifold;And turbocharger, with turbine, which is arranged in turbine shroud and via whirlpool
Manifold is taken turns with multiple cylinders to be in fluid communication.Turbo-manifold may include:Main body;At least one non-dedicated EGR conduit, is arranged on master
In vivo;Special EGR conduit is arranged in main body and is in fluid communication with special EGR cylinders and EGR conduit;And EGR by-passing valves,
It is in fluid communication with special EGR conduit.Special EGR conduit can converge at least one non-dedicated EGR conduit in EGR by-passing valves downstream
It is poly-.EGR by-passing valves optionally allow or prevent the fluid communication between special EGR conduit and EGR conduit.EGR by-passing valves
It may include two-way valve, there is the door that the second position can be moved to from first position, wherein when door is in first position, it is special
EGR conduit is in fluid communication, and at least one non-dedicated EGR conduit when door is in the second position, special EGR conduit and EGR
Catheter fluid connects.Manifold and turbine shroud can be that integral type constructs.The system can further comprise conduit, with one or more
At least one of a non-dedicated EGR cylinders and at least one of non-dedicated EGR conduit fluid communication.The system can be further
Including conduit, it is in fluid communication with special EGR cylinders and special EGR conduit.
From below in the detailed description of exemplary embodiment and attached drawing, other purposes of exemplary embodiment, advantage and
Novel feature will be apparent.
Description of the drawings
Fig. 1 is the schematic diagram according to the combustion engine unit with the recycling of special exhaust gas of one or more embodiments.
Fig. 2 is the perspective view according to the turbocharger of one or more embodiments.
Fig. 3 A are the perspective views according to the turbocharger turbine housing manifold of one or more embodiments.
Fig. 3 B are the sectional views according to the turbocharger turbine housing manifold of one or more embodiments.
Specific embodiment
This document describes embodiment of the disclosure.It is to be understood, however, that disclosed embodiment be only example and its
Various and alternative form can be presented in its embodiment.Schema is not drawn necessarily to scale;Certain features can be exaggerated or minimized
To show the details of particular elements.Therefore, specific structure and function details disclosed herein are not construed as limiting, and only solve
It is interpreted as instructing those skilled in the art's representative basis using the present invention in various ways.Such as this field general technology people
Member says it will be appreciated that can be combined in one or more of the other schema with reference to each feature that any one schema illustrates and describes
Bright feature with generate not yet explicitly illustrate or describe embodiment.Illustrated feature combination provides the representative for typical case
Property embodiment.However, specific application or embodiment can it is expected each combination of the feature consistent with the introduction of the disclosure and repair
Change.
There is provided herein turbocharger turbine housing manifold, turbocharger and including turbocharger turbine housing
Manifold and the exhaust gas of turbocharger recycling (EGR) system.Manifold respectively includes one or more EGR by-passing valves, passes through
Reduce the efficiency that turbocharger is improved by the pressure and heat loss of exhaust gas therein.Increase by EGR by-passing valves in turbine
Construction and position in depressor manifold or turbine shroud, can improve efficiency.
Refer to the attached drawing, wherein identical reference numeral is used to identify the similar or identical component in various views, Fig. 1 signals
Ground illustrates engine pack 10, including internal combustion engine 12, gas handling system 14 and exhaust system 16.Gas handling system 14 and exhaust system
System 16 can respectively be in fluid communication, and can pass through 18 connection mechanically to each other of turbocharger with internal combustion engine (ICE) 12 respectively.
ICE 12 includes the cylinder block 11 for limiting multiple cylinders 20 (being referred to as cylinder 1 to 4).ICE 12 can be spark ignition
Or compression ignition design.For simplicity, ICE 12 is illustrated as in-line arrangement four-cylinder arrangement.It is to be understood, however, that this
Introduction is suitable for any amount of piston-cylinder arrangement and the configuration of various reciprocating engines, and including but not limited to V-type is started
Both machine, in-line engine and pancake engine and the configuration of overhead cam and unitary cam.In certain specific realities
It applies in example, ICE 12 may include three cylinder of in-line arrangement or six cylinder engine.In other specific embodiments, ICE 12 can especially include
Engine is configured in V-6, V-8, V-10 and V-12.The piston that each cylinder 20 may include being configured to move back and forth wherein (does not show
Go out), wherein cylinder 20 and its corresponding piston can limit combustion chamber.Each respective cylinder 20 may include one or more fuel sprays
Liquid fuel is optionally introduced into each cylinder to burn (as aerosol) by emitter 29.Each cylinder 20 can
With 14 selective fluid communication of gas handling system to receive the air of fresh/oxygenation, and cylinder 20 can be selected with exhaust system 16
It is in fluid communication to discharge combustion by-products to property.Each in cylinder 1,2,3 and 4 is respectively via 21,22,23 and of dedicated conduits
24 will 40 discharge ICE 12 of exhaust.Exhaust gas 40 then can be by one or more after-treatment devices (such as, device 42) with useless
Gas is catalyzed and/or removes certain by-products before leaving exhaust system 16 via tail pipe 44.
Gas handling system 14 usually may include fresh air inlet 15, EGR mixer 26, charger-air cooler 28, throttling
Valve 30 and inlet manifold 32.As can be appreciated, during the operation of ICE 12, fresh air 34 can be by gas handling system 14 via fresh
Air intake 15 is absorbed from air or from related air purifier component.Throttle valve 30 may include controllable baffle, configuration
To be selectively adjusted the total flow for the air for by gas handling system 14 and finally entering cylinder 20 via inlet manifold 32.Increase
Pressure aerial cooler 28 is illustrated as receiving such as by the combination of the EGR gases 54 that EGR mixer 26 provides and fresh air 34.At certain
In a little embodiments, gas handling system 14 can additionally or alternatively include:One or more special cooler for recycled exhaust gas (not shown), with
EGR conduit 52 is in fluid communication and is configured to cool down EGR gases 54 before EGR mixer 26;And intercooler (does not show
Go out), it is in fluid communication and is configured to cool down before EGR mixer 26 fresh air 34 of compression with conduit 66.Specific
In embodiment (not shown), charger-air cooler 28 is located at the upstream of EGR mixer 26.
As described above, gas handling system 14 and exhaust system 16 can carry out mechanical communication by turbocharger 18.In Fig. 2
Shown, turbocharger 18 includes the turbine 60 being in fluid communication with exhaust system 16 and the compression being in fluid communication with gas handling system 14
Machine 62.Turbine 60 and compressor 62 can be mechanically coupled via public rotatable shaft 64, which extends through bear box
67.Turbine 60 may be provided in turbine shroud 61, and similarly, and compressor 62 may be provided in compressor housing 63.It is operating
In, turbine 60 receives exhaust gas 40 via manifold 70.Specifically, manifold 70 by exhaust gas 40 from the reception and registration of at least one of cylinder 1 to 4
To circumferential spiral case or snail volume 68.In certain embodiments, manifold 70 can be integrated with turbine shroud 61, such as integral type structure
It makes.In certain embodiments, the integrated heat and the maximum of the pressure loss of providing of manifold 70 and turbine shroud 61 is reduced.Certain
In other embodiments, manifold 70 is the one-piece construction detached with turbine shroud 61.Turbine 60 captures the kinetic energy from exhaust gas 40,
And via 64 rotary compressor 62 of common axis.The volume limitation of exhaust gas 40 in turbine shroud 61 converts thermal energy into similarly
The additional kinetic energy captured by turbine 60.For example, it can especially optimize spiral case 68 to realize conversion of the thermal energy to kinetic energy.
Then, compressor 62 sucked from entrance 15 via the rotation of common axis 64 fresh air 34 and compress it to
The rest part of gas handling system 14.For example, compressed air can be conveyed to gas handling system 14 by compressor 62 via conduit 66.Exhaust gas
40 changeable flow and Li Ke influence can be applied the amount of the boost pressure to fresh air 34 by compressor 62, and then can shadow
Sound can be transported to the amount of the oxygen of cylinder 20.In many cases it is required energy is farthest shifted from exhaust gas 40
To compressor 62.In some cases, the boost pressure applied by compressor 62 can be limited by optional waste gate valve 55.Waste gate
Valve 55 can for example commutate exhaust gas 40 towards tail pipe 44 far from turbocharger turbine 60 via waste gate conduit 56, thus limit
Boost pressure.For example, waste gate valve 55 can be activated via actuator 57.
Engine pack 10 include special egr system 50, can (for example, via EGR conduit 52) by EGR gases 54 from
One or more specialized gas cylinders of ICE 12 are directly returned in gas handling system 14.For example, this recycling EGR gases 54 can be
Mixed at EGR mixer 26 with fresh air 34, and can correspondingly diluted mixture oxygen content.Fire can be improved using EGR
The efficiency of spark ignition engine.EGR can also reduce ignition temperature and NOx generations in ICE 12.By the whole of a cylinder 20
Whole exhaust gas of exhaust or less than all cylinders 20 return to air intake assembly 14 and are referred to herein as " special EGR ".Special EGR can
Including wherein substantially whole exhaust gas of a cylinder 20 or less than all cylinders 20 are sent back to the embodiment of air intake assembly 14.
In general, manifold 70 includes having the main body of multiple pipelines assembled wherein, at least one in plurality of pipeline
It is a to be specially in fluid communication with special EGR cylinders or multiple special EGR cylinders.Each pipeline in manifold 70 can specially with it is special
Conduit (such as dedicated conduits 21 to 24) is connected or can be connected with multiple dedicated conduits (such as conduit 22 and 23).Pipe special
21 to 24 be optional, and is only used for realizing between manifold channels and the cylinder (such as cylinder 1 to 4 or ICE 12) of ICE
It is in fluid communication.Show as shown in fig. 1, as non-limiting example, pipeline 21 ', 22 ', 23 ' and 24 ' respectively with pipe special 21,
22nd, 23 and 24 are in fluid communication, and the latter therein connects with corresponding 12 cylinders of ICE.In certain embodiments, it is one or more
Optional dedicated conduits can converge before being in fluid communication with manifold channels.In other embodiments, manifold 70 can directly and ICE
12 cylinders connect.For example, manifold 70 can be directly fixed to cylinder block 11.Manifold bodies can be metal, carbon fiber or show height
Other similar materials of thermal stability.
The conduit being specially in fluid communication in manifold 70 with special EGR cylinders or multiple special EGR cylinders is referred to alternatively as special
EGR conduit.Therefore, as indicated, pipeline 24 ' includes special EGR conduit.In certain embodiments, manifold 70 is included therein remittance
At least three poly- pipelines, in wherein at least three pipeline at least two but be special EGR conduit all or less than pipeline.EGR
By-passing valve (such as EGR by-passing valves 71) is arranged in the special EGR conduits of one or more of manifold 70, for by exhaust gas from one
A or multiple special EGR cylinders are bypassed to conduit 52.One or more EGR by-passing valves are configured such that in special EGR conduit
Exhaust gas in one or more of exhaust gas of the contact from non-dedicated EGR conduit and turbocharger turbine (such as turbine 60)
It is before capable of bypass to EGR conduit 52.For illustrative purposes, EGR by-passing valves 71 are illustrated as in the interior (warp with specialized gas cylinders 4 of pipeline 24 '
By optional dedicated conduits 24) and the fluid communication of pipeline 21 ', 22 ' and 23 '.The downstream side 71 ' of pipeline 24 ' and EGR by-passing valves 71
On pipeline 21 ', 22 ' and 23 ' converge, hereafter all pipelines are jointly in fluid communication with turbine 60.It is disclosed herein including collection
Into the manifolds (such as manifold 70) of EGR by-passing valves pass through and reduce one or more specialized gas cylinders (such as cylinder 4) and increase with turbine
The pressure drop of exhaust gas (such as exhaust gas 40) between depressor turbine (such as turbine 60) and heat loss improve turbocharger (such as
Turbocharger 18) efficiency.The EGR by-passing valves 71 set herein are configured the cylinder between specialized gas cylinders and non-dedicated cylinder
The geometry in path and volume variation minimize between turbine.
As illustrated in Figure 1, optional dedicated conduits 21,22,23 and 24 respectively with corresponding pipeline 21 ', 22 ', 23 ' and
24 ' are in fluid communication, these pipelines converge in manifold 70 exhaust gas 40 being delivered to turbine 60.Pipeline 22 ' and 23 ' is illustrated as
With pipeline 21 ' and 24 ' convergence before converge, however it is such orientation be it is optional, and non-dedicated EGR conduit convergence any row
Row should be considered to be within the scope of this disclosure.Cylinder 4 is illustrated as special EGR cylinders since it is associated with EGR by-passing valves 71,
The EGR by-passing valves are arranged to be in fluid communication with pipeline 24 ', EGR conduit 52 and turbine 60.As needed, it is discharged from cylinder 4
Exhaust gas 40 can be conveyed to turbine 60 via EGR by-passing valves 71 or be diverted to EGR conduit 52.Under any operational circumstances, remaining vapour
The exhaust gas 40 of cylinder 20 (that is, cylinder 1 to 3) is for example communicated to gas deflation assembly 16 via conduit 56 and 65.In other embodiments,
Multiple cylinders but their 100% EGR gases 54 can be returned all or fewer than cylinder supplied to air intake assembly 14.For example, cylinder 1
Their 100% EGR gases 54 can be returned with 4 supplied to air intake assembly 14, and the exhaust gas 40 of cylinder 2 and 3 can be via exhaust
Component 16 is discharged from ICE 12.In such embodiments, manifold 70 may include being arranged to and special EGR conduit 21 ' and 24 '
The single EGR by-passing valves (such as EGR by-passing valves 71) of fluid communication alternatively include two individual EGR by-passing valves, often
A EGR by-passing valves are arranged to special EGR conduit 21 ' and 24 ' be in fluid communication respectively.In certain embodiments, it conduit 56 and leads
Pipe 65 can converge in manifold 70.
Fig. 3 A illustrate the perspective view of the manifold being bound in turbine shroud 61 70.Fig. 3 B further illustrate manifold 70
Sectional view.Manifold 70 includes two-way EGR valve 71, including the door 72 that can be moved between first position 73 and the second position 74.
Door 72 is configured to management pipeline 24 ' (special EGR conduit) and pipeline 21 ', pipeline 22 ', pipeline 23 ', turbine 60 and EGR conduit 52
One or more of between fluid communication.Management is in fluid communication and may include selectively allowing for, prevents or prevent fluid from connecting
One or more of lead to.Door 72 can be controlled by such as EGR valve actuator 75, which can be actuated at door 72
Between first position 73 and the second position 74.When door 72 is in first position 73, EGR conduit 24 ' and pipeline 21 ', pipeline
22 ', one or more of pipeline 23 ' and turbine 60 fluid communication, and the interior exhaust gas of EGR conduit 24 ' can be communicated to turbine
60.When door 72 is in the second position 74, pipeline 24 ' is in fluid communication with EGR conduit 52, and the interior exhaust gas of EGR conduit 24 ' is passed
Reach EGR conduit 52.Pipeline 22 ' and 23 ', pipeline 21 ' and 24 ' are illustrated as converging before turbine 60 is introduced into respectively.Ability
Field technique personnel are it will be recognized that this configuration is optional, and any or all pipeline in the downstream of EGR valve 71 is in manifold 70
Convergence within the scope of this disclosure.
In certain embodiments, two-way EGR valve 71 can be replaced by two check valves, the two check valves are relative to special
EGR conduit 24 ' is unidirectional and prevent from turbine 60, one or more non-dedicated EGR conduits 21 ' to 23 ' or EGR conduit
52 fluid is flowed along updrift side towards pipe special 24 ' or cylinder 4.Single check valve can for example occupy 73 He of first position
Each in the second position 74.Each check valve can be by actuator activation that is identical or separating.
Although described above is exemplary embodiment, it is not intended to the description of these embodiments and is covered by claims
Be possible to form.It is descriptive vocabulary rather than restricted vocabulary with vocabulary in the description, and should be appreciated that
Various change can be carried out without departing from the spirit and scope of the present invention.As it was earlier mentioned, the feature of each embodiment can group
Being synthetically formed can the indefinite further embodiment of the present invention described or illustrate.Although each embodiment is just one or more
It may have been depicted as providing advantage or better than other embodiments or prior art embodiment for required characteristic, but ability
Domain those skilled in the art recognize, can sacrifice one or more features or characteristic to realize and depend on concrete application and embodiment
Expectation total system attribute.These attributes may include (but not limited to) cost, intensity, durability, life cycle cost, market
Merchantability, appearance, packaging, size, service ability, weight, manufacturability, convenient for assembling etc..Thus, with regard to one or more characteristics
For, be described as needed for property not as good as other embodiments or the embodiment of prior art embodiment not outside the scope of the present disclosure
And can be required for specific application.
Claims (10)
1. a kind of turbocharger, including:
Compressor is arranged in compression case body;And
Turbine is mechanically coupled to the compressor and is arranged in turbine shroud, wherein the turbine shroud includes tool
There is the manifold of multiple pipelines, the multiple pipeline, which is converged in the manifold and established with the turbine, to be in fluid communication, and institute
It is special exhaust gas recycling (EGR) pipeline for having EGR by-passing valves to state one in pipeline.
2. a kind of turbocharger turbine manifold, the manifold include:
Main body;
At least one non-dedicated exhaust gas recycling (EGR) pipeline;
Special EGR conduit;And
The EGR by-passing valves being in fluid communication with the special EGR conduit, wherein under the special EGR conduit and the EGR by-passing valves
At least one non-dedicated EGR conduit convergence of trip.
3. a kind of exhaust gas recycles (EGR) system, the system comprises:
Internal combustion engine, with inlet manifold, the inlet manifold is configured for delivering the air to multiple cylinders, wherein described
One in multiple cylinders is special EGR cylinders;
EGR conduit is in fluid communication with the inlet manifold;And
Turbocharger, with turbine, the turbine be arranged in turbine shroud and via turbo-manifold with it is the multiple
Each fluid communication in cylinder, the turbo-manifold include:
Main body;
At least one non-dedicated EGR conduit, is arranged in the main body;
Special EGR conduit is arranged in the main body and is in fluid communication with the special EGR cylinders and the EGR conduit;And
The EGR by-passing valves being in fluid communication with the special EGR conduit, wherein under the special EGR conduit and the EGR by-passing valves
At least one non-dedicated EGR conduit convergence of trip.
4. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system,
Described in manifold and turbine shroud be one-piece construction.
5. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system,
Described in special EGR conduit and EGR conduit be in fluid communication.
6. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system,
Described in EGR by-passing valves optionally allow or prevent the special EGR conduit and the special EGR conduit or the EGR
Fluid communication between conduit.
7. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system,
Described in EGR by-passing valves include two-way valve, the door of the second position can be moved to from first position by having, wherein at the door
When the first position, the special EGR conduit connects with the turbine or at least one non-dedicated EGR conduit fluid
It is logical, and when the door is in the second position, the special EGR conduit is in fluid communication with the EGR conduit.
8. turbocharger, turbocharger turbine manifold or egr system according to any one of the preceding claims, into
One step includes waste gate valve, and the waste gate valve is arranged on the downstream of the EGR by-passing valves.
9. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system, into
One step includes conduit, at least one of the conduit and one or more of non-dedicated EGR cylinders and the non-dedicated EGR
At least one of pipeline fluid communication.
10. turbocharger according to any one of the preceding claims, turbocharger turbine manifold or egr system,
Further comprise conduit, the conduit is in fluid communication with the special EGR cylinders and the special EGR conduit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/367848 | 2016-12-02 | ||
US15/367,848 US20180156164A1 (en) | 2016-12-02 | 2016-12-02 | Turbine housings and turbine housing manifolds having integrated bypass valves for dedicated exhaust gas recirculation engines |
Publications (1)
Publication Number | Publication Date |
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CN108150314A true CN108150314A (en) | 2018-06-12 |
Family
ID=62163787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201711220401.8A Pending CN108150314A (en) | 2016-12-02 | 2017-11-28 | Turbine cylinder and the turbine shroud manifold with the integrated form by-passing valve for special exhaust gas recycling engine |
Country Status (3)
Country | Link |
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US (1) | US20180156164A1 (en) |
CN (1) | CN108150314A (en) |
DE (1) | DE102017128315A1 (en) |
Cited By (1)
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CN111156113A (en) * | 2018-11-08 | 2020-05-15 | 通用汽车环球科技运作有限责任公司 | Method for improving engine efficiency and vehicle system |
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US10760538B2 (en) | 2017-10-26 | 2020-09-01 | 500 Group, Inc. | Customizable engine air intake/exhaust systems |
WO2019084091A1 (en) | 2017-10-26 | 2019-05-02 | 500 Group, Inc. | Dual-angle exhaust manifold |
KR102179244B1 (en) * | 2019-10-21 | 2020-11-16 | 세종공업 주식회사 | Dedicated exhaust gas recirculation apparatus controlling exhaust gas flow |
EP3981979A1 (en) | 2020-10-07 | 2022-04-13 | Volvo Truck Corporation | An internal combustion engine system |
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US20180156164A1 (en) | 2018-06-07 |
DE102017128315A1 (en) | 2018-06-07 |
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